closed-boll cotton $em dash$ 1. properties of never-dried cotton fibers before and after aqueous formaldehyde treatment

data are presented whih demonstrated that cotton lint from closed bolls harvested at various stages approaching maturity had very high initial moisture content, water retention, and dye sorption. values decreased as fibers matured. equilibrium moisture contents of never-dried cotton by desorption to 93 and 87 relative humidity were much h..

study on air permeability of fiber assemblies oriented unidirectionally

the relation between the air permeability k of fiber assemblies unidirectionally oriented at high porosity $epsilon$ was studied by applying the darcy law to one-dimensional air flow. experiments were performed with cotton fibers and polyester fibers in the porosity region of 96. 0-99. 9 when fiber-axes are parallel and perpendicular to a..

cottonseed oil

research on the effects of genetics and growing location on cottonseed has shown that oil and fatty acid composition could be improved if geneticists and agronomists would strive for improved seed quality as vigorously as they do for improved fiber quality breeding of glandless or gossypol-free cottonseed was a genetic breakthrough. major..

vapor transport of formaldehyde to cotton

in the reported experiments, a basic study of the transport of formaldehyde via the vapor phase to cotton was conducted. fundamental physicochemical factors that influence vapor transport of formaldehyde to and from cotton fabrics were identified; these factors include time, temperature, and concentration parameters, which are interrelate..

smoldering phenomenon associated with cotton

in the reported experiments, treated cotton batting has been examined as a substrate for cotton upholstered furniture. evaluation of the smoldering hazard includes the tests proposed by ufac and nbs, together with smoldering rates and surface temperature profiles obtained using the srrc rate chamber. the influence of washing on the smolde..

cathodic e-coat improves farm implement finish

international harvester (ih) has installed cathodic electrocoating (e-coat) at its sprawling plant to improve the finish quality on selected production piece parts for control centers (cabs) on tractors, combines and cotton pickers. the extremely tough nature of the black acrylic e-coat film allows ih to use it as a one-coat system on sel..

methods of electrically charging cotton

in the reported experiments, triboelectric, corona, and contact charging were studied as a means for effectively charging cotton fibers in an attempt to design a system for supplying fibers to a three-phase ac airless transporting device. the minimum charge on a fiber for these devices to be effective is approximately 10** $minus$ **1**0c..

heat generation in supercalendering bowls

fatigue testing of cotton and other materials demonstrated that a significant amount of heat is generated in the frequency range of 10 to 80 hz, although hysteresis measurements were not conclusive due to sloppiness in the hydraulic drive of the dynamic testing machine a second stage of experiments was carried out running two bouls in the..

simplified asme acceptance test procedure for steam turbines

a simplified procedure is proposed, which reduces the cost of steam turbine acceptance testing without significantly affecting testing accuracy. this simplified acceptance test procedure is applicable to both fossil and nuclear power plants. it involves only the measurements required to calculate heat rate and required to compare the test..

crease-recovery and tensile-strength properties of unmodified and modified cotton cellulose treated with crosslinking agents

in the reported experiments, cotton fabrics were oxidized with nitrogen oxide and sodium periodate and crosslinked with dimethylol urea (dmu) and with dimethylol dihydroxy ethylene urea (dmdheu) by the pad-dry-cure process. the effect of pre- and post-oxidation to resin treatment on the crease-resistance and tensile properties of cotton f..